CN112454242A

CN112454242A - VR adjusts structure

Info

Publication number: CN112454242A
Application number: CN202011288601.9A
Authority: CN
Inventors: 顾坤; 王江龙; 李福坤; 陈林
Original assignee: Nanjing Testech Technology Co ltd
Current assignee: Nanjing Testech Technology Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-03-09

Abstract

The invention relates to a VR (virtual reality) adjusting structure which comprises a screwdriver head, a screwdriver head fixing sleeve, a first spring, a transmission guide rod, a sleeve, a second spring, a friction piece and a connecting sleeve, wherein the tail end of the screwdriver head is connected with one end of the transmission guide rod in a matching mode, the other end of the transmission guide rod is movably connected with the front end of the connecting sleeve, the tail end of the screwdriver head is sleeved with the first spring, the connecting end of the screwdriver head and the transmission guide rod is sleeved with the screwdriver head fixing sleeve, the friction piece is arranged at the front end of the connecting sleeve, the connecting end of the transmission guide rod and the connecting sleeve is sleeved with the second spring, the transmission guide rod is sleeved with the sleeve, one end of the sleeve is in torsional connection with the connecting sleeve through a bearing, and the other end of the sleeve is. The invention has simple structure, is easy to miniaturize and miniaturize, and is suitable for the manufacturing requirement of the miniaturization trend of the current electronic products; the automatic adjustment function of VR in the test process of electronic product production manufacturing can be realized, and efficiency is better.

Description

VR adjusts structure

Technical Field

The invention relates to the field of electronic component corollary equipment, in particular to a VR (virtual reality) adjusting mechanism.

Background

The VR-variable Resistor is widely applied to electronic products, brings convenience for adjustment of electrical parameters of the electronic products and brings inconvenience for production intelligent manufacturing, and as the electronic products are miniaturized, the overall dimension of VR is smaller and smaller, and manual adjustment is often needed in the production and manufacturing process, so that the electronic products reach set parameter indexes.

At present, realize VR automatically regulated and adopt manual operation servo motor to add the mode of adjusting the screwdriver head mostly, realize VR's automatic adjustment function through moment control, this kind of mode easily causes the damage to the VR device at the realization in-process, and bulky difficult miniaturization, with high costs.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art and provide a VR regulating structure which is simple in structure, small in size, light and convenient to operate.

In order to achieve the purpose of the invention, the technical scheme is as follows:

the utility model provides a VR adjusts structure, its characterized in that, includes the fixed cover of bottle opener head, first spring, transmission guide arm, sleeve, second spring, friction piece and adapter sleeve, the tail end of bottle opener head is connected with the one end cooperation of transmission guide arm, the other end of transmission guide arm and the front end swing joint of adapter sleeve, the tail end of bottle opener head is established to first spring housing, the fixed cover of bottle opener head is established the link of bottle opener head and transmission guide arm for fixed bottle opener head, the preceding tip at the adapter sleeve is established to the friction piece, the link of transmission guide arm and adapter sleeve is established to second spring housing, the transmission guide arm is established to the sleeve cover, telescopic one end is passed through bearing and adapter sleeve wrench movement and is connected, the other end sets firmly the transmission guide arm through fixation nut.

By adopting the technical scheme, the rear end of the connecting sleeve is connected with the coupling of the external motor, the external motor can adopt a stepping motor or a common small-sized direct current motor as a drive (has great advantages in the whole volume and cost), the connecting sleeve is driven to rotate, and the front end part of the connecting sleeve further rubs with the friction piece to provide torque.

Further, first spring provides the floating space for the screwdriver head in the screwdriver head fixed sleeve, when guaranteeing screwdriver head and VR butt joint coupling, does not harm the VR body when the screwdriver head can be smooth and easy the slip in VR notch.

Furthermore, when the device is used, a first spring and a second spring which are matched with VR mechanical parameters are needed, the device can be arranged on a robot arm, and accurate positioning can be carried out by matching with a vision system; meanwhile, the device mainly controls the torque output of the transmission guide rod through friction force, further adjusts the compression stroke of the second spring, accurately controls the torsion in the VR rotation adjusting process according to the physical relation characteristic of pressure and friction force, and ensures that the VR is not damaged due to over-torque in automatic test adjustment.

As the preferred technical scheme, the bearing fixing device further comprises a clamp spring, wherein the clamp spring is arranged at the connecting end of the bearing and the connecting sleeve and used for fixing the bearing.

The invention has the beneficial effects that: 1. the nondestructive butt coupling of the screwdriver head and the VR to be adjusted can be realized; 2. the structure is simple, the miniaturization and the miniaturization are easy, and the manufacturing requirement of the miniaturization trend of the current electronic products is met; 3. the automatic adjustment function of VR in the test process can be realized in the production and manufacturing of electronic products, the mode of traditional manual operation is replaced, and the efficiency is better.

Drawings

FIG. 1 is an exploded view of a VR modulating structure of the present invention;

FIG. 2 is a schematic diagram of a VR modulating structure in accordance with the present invention;

fig. 3 is a schematic diagram of the present invention.

In the figure: the screwdriver comprises a screwdriver head 1, a screwdriver head fixing sleeve 2, a first spring 3, a transmission guide rod 4, a sleeve 5, a clamp spring 6, a second spring 7, a friction piece 8, a connecting sleeve 9, a bearing 10 and a fixing nut 11.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make it easier for those skilled in the art to understand the advantages and features of the present invention, so as to clearly and clearly define the scope of the present invention.

Referring to fig. 1-2, a VR adjusting structure includes a screwdriver head 1, a screwdriver head fixing sleeve 2, a first spring 3, a transmission guide rod 4, a sleeve 5, a second spring 7, a friction member 8 and a connecting sleeve 9, wherein a tail end of the screwdriver head 1 is connected with one end of the transmission guide rod 4 in a matching manner, the other end of the transmission guide rod 4 is movably connected with a front end of the connecting sleeve 9, the first spring 3 is sleeved with the tail end of the screwdriver head 1, the screwdriver head fixing sleeve 2 is sleeved with a connecting end of the screwdriver head 1 and the transmission guide rod 4 to fix the screwdriver head 1, the friction member 8 is arranged at a front end of the connecting sleeve 9, the second spring 7 is sleeved with a connecting end of the transmission guide rod 4 and the connecting sleeve 9, the sleeve 5 is sleeved with the transmission guide rod 4, one end of the sleeve 5 is connected with the connecting sleeve 9 in a twisting manner through a bearing 10, and the other end of the.

In this embodiment, the rear end of the connecting sleeve 9 is connected to a coupling of an external motor, the external motor may be driven by a stepping motor or a common small dc motor (which has great advantages in overall size and cost), the connecting sleeve 9 is driven to rotate, and the front end of the connecting sleeve 9 further rubs against the friction member 8 to provide a torque force.

In this embodiment, the first spring 3 provides a floating space for the screwdriver head 1 in the screwdriver head fixing sleeve 2, so that when the screwdriver head 1 and the VR are coupled in a butt joint mode, the screwdriver head 1 can smoothly slide into the VR slot without damaging the VR body.

In the embodiment, when the device is used, the first spring 3 and the second spring 7 matched with VR mechanical parameters are needed, the device can be arranged on a robot arm, and accurate positioning can be carried out by matching with a vision system; meanwhile, the device mainly controls the torque output of the transmission guide rod 4 through friction force, further adjusts the compression stroke of the second spring 7, accurately controls the torsion in the VR rotation adjusting process according to the physical relation characteristic of pressure and friction force, and ensures that the VR is not damaged due to excessive torque in automatic test adjustment.

In this embodiment, the bearing fixing device further comprises a clamp spring 6, wherein the clamp spring 6 is arranged at the connecting end of the bearing 10 and the connecting sleeve 9 and used for fixing the bearing 10.

Referring to fig. 3, in the present embodiment, the compression ratio of the second spring is defined as Δ X, spring stiffness coefficient k, friction member radius R, friction coefficient μ, that is:

Fn＝k△X，

Ff＝μFn，

an equivalent alternative method is used to give an output torque radius of 1/2R,

m output FL _ Ff _ 1/2R _ 1/2 μ k Δ X R,

a second spring UL4-10 is selected, i.e., Δ X is 0-4mm, k is 0.98N/mm, R is 7mm, μ is 0.02,

the M output max FL-Ff 1/2R-1/2 μ k Δ X R-0.5-0.7-0.98-4-7-9.604 Nmm, which also contains the torque generated by friction of other mechanisms in the actual usage schedule, is measured to be about 6Nmm, i.e. the actual torque range of the device is 6-15.6Nmm,

in the process of practical application, the torque adjusting range can be changed by changing the type of the spring.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a VR adjusts structure, its characterized in that, includes the fixed cover of bottle opener head, first spring, transmission guide arm, sleeve, second spring, friction piece and adapter sleeve, the tail end of bottle opener head is connected with the one end cooperation of transmission guide arm, the other end of transmission guide arm and the front end swing joint of adapter sleeve, the tail end of bottle opener head is established to first spring housing, the fixed cover of bottle opener head is established the link of bottle opener head and transmission guide arm for fixed bottle opener head, the preceding tip at the adapter sleeve is established to the friction piece, the link of transmission guide arm and adapter sleeve is established to second spring housing, the transmission guide arm is established to the sleeve cover, telescopic one end is passed through bearing and adapter sleeve wrench movement and is connected, the other end sets firmly the transmission guide arm through fixation nut.

2. The VR adjustment structure of claim 1, wherein: the clamp spring is arranged at the connecting end of the bearing and the connecting sleeve and used for fixing the bearing.